MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8
SHA3-384 hash: 49eac6801b6d361b69c09c0c45f382bccc9dcbbbb204e614f5b45ff1dc55454bd5cdca6fccdd4e69a908654c404394cd
SHA1 hash: 938024a9f69606796254d6b8c0ec941cd2dce1ac
MD5 hash: 1fa274676dbdf091f9e67d6575258a06
humanhash: wolfram-early-mockingbird-river
File name:Төлемді растау.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:893'440 bytes
First seen:2022-02-22 07:27:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:fgB6PVQNAh7j3mWPjIKLPzL2Cq3uR/m9BFwuQDuKxBaU+XhHQIZLrEtP0XSiHL:TmNNkJL7LVCooBSuajubVJZMtcii
Threatray 10'194 similar samples on MalwareBazaar
TLSH T16B15CF143AAB0F3DF0B94BB248D5DC64FB69F6235C09F37D785121D6CA62B408D826B6
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/243147/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.NanoBot.mc.30336.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/6214908cac8ad0468b6512a9/reports/51d82f54-88d6-4907-9aea-73a4658230a2/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bfde2270-c616-451e-ba97-23390fb57aab
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/943695
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 576171 Sample: #U0422#U04e9#U043b#U0435#U0... Startdate: 22/02/2022 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 16 other signatures 2->52 10 #U0422#U04e9#U043b#U0435#U043c#U0434#U0456 #U0440#U0430#U0441#U0442#U0430#U0443.pdf.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\Roaming\fpmZrmA.exe, PE32 10->38 dropped 40 C:\Users\user\...\fpmZrmA.exe:Zone.Identifier, ASCII 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmpADA0.tmp, XML 10->42 dropped 44 #U0422#U04e9#U043b...0#U0443.pdf.exe.log, ASCII 10->44 dropped 54 Adds a directory exclusion to Windows Defender 10->54 14 RegSvcs.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 2 other signatures 14->64 21 explorer.exe 1 157 14->21         started        23 explorer.exe 14->23 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 process9 29 msiexec.exe 21->29         started        signatures10 56 Maps a DLL or memory area into another process 29->56 32 cmd.exe 29->32         started        34 explorer.exe 29->34         started        process11 process12 36 conhost.exe 32->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-02-22 07:28:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
20 of 28 (71.43%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ypsmfypcilhzefbpjvh3dcldkth2a4ej6qbehmyqi37t5lukylea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2084194e47482bf35f4b7c5724d6cf0db56cf4f10811f727a3517579c3985b2c
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
44ec04e0e019c71ef2da463be580df904e323388f5250787c3e186c5e954bbd0
Formbook
54cfa1f93d985c0bf952e00247f781f36988dffec0cb8d83f79fa3e41d98b335
Formbook
70c6fd4de902c8ccce31380698b123def84b4d209c8b824e1065349a5aee9de2
Formbook
921628eeb649a7c9f45ccb4b95ccecba8a76e273a88bdf8478c7e63cef2fb10a
Formbook
db4fa159359fbe0ba9857ae0e971dd206f23a7522b14073151b27bb030db8f5f
Formbook
f97b2cd66adc0c7b034ef08abf096ba10694657f75784ad3b0c84ab1dd438f35
Formbook
+ 10'184 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:d2g7 rat spyware stealer trojan
Link:
https://tria.ge/reports/220222-janx4seah6/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
55387d8366303a794ee0f3d71a04617f0f1ee9c67a55c913f9b6b870efa123b8
MD5 hash:
c7a79737aa6d4fadfac3b251d48773c4
SHA1 hash:
1afbe9593ed76bd2edb0e0dba4512eb3c8d43fb3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fe701395-6ff5-455c-abb8-68960a71dc72/
Parent samples :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 hash:
a723943e3e1014ec75f91d5b333cf5b870b233f49f0cd954b74a9dc742722064
MD5 hash:
07ef792d987bb18e4b82a320ba43cce7
SHA1 hash:
cbcfb0e8a9ac90500a0943f9d346cc829b71a282
Link:
https://www.unpac.me/results/fe701395-6ff5-455c-abb8-68960a71dc72/
SH256 hash:
1afdffbfdb068eaeba421d9410f0b3f48a91dfacd031207d0669256e104b6cb5
MD5 hash:
607d34f9f78e0924f5bf3f37413a1484
SHA1 hash:
bf2910885202d794020698c42a7e271c904d2b64
Link:
https://www.unpac.me/results/fe701395-6ff5-455c-abb8-68960a71dc72/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/fe701395-6ff5-455c-abb8-68960a71dc72/
SH256 hash:
c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8
MD5 hash:
1fa274676dbdf091f9e67d6575258a06
SHA1 hash:
938024a9f69606796254d6b8c0ec941cd2dce1ac
Link:
https://www.unpac.me/results/fe701395-6ff5-455c-abb8-68960a71dc72/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c3e4c2e1e242/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

zip e3df3ec06cd08e67fa11bc0e8f0261476e6e8b57b7d6894c17773af544b8c93d

Formbook

Executable exe c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 e3df3ec06cd08e67fa11bc0e8f0261476e6e8b57b7d6894c17773af544b8c93d
Cape
Cape
https://www.capesandbox.com/analysis/243147/

Comments